George Bush

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President Of The United States

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For You

Who is the longest-living president in U.S. history? Explained. The longest-living president in U.S. history is Jimmy Carter, not Harry S. Truman, Ronald Reagan, or George H.W. Bush. Jimmy Carter, the 39th President of the United States, holds the record for the longest post-presidency in American history. While Harry S. Truman was the 33rd President, Ronald Reagan served as the 40th President, and George H.W. Bush was the 41st President, it is Jimmy Carter who has lived the longest after leaving office, surpassing the other presidents mentioned in terms of longevity. Carter's post-presidential activities, including his philanthropic work and his continued involvement in public service, have contributed to his enduring legacy as the longest-living president in U.S. history.